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Traffic eavesdropping based scheme to deliver time-sensitive data in sensor networks

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3 Author(s)
Daabaj, K. ; Sch. of Inf. Technol., Murdoch Univ., Perth, WA, Australia ; Dixon, M. ; Koziniec, T.

Due to the broadcast nature of wireless channels, neighbouring sensor nodes may overhear packets transmissions from each other even if they are not the intended recipients of these transmissions. This redundant packet reception leads to unnecessary expenditure of battery energy of the recipients. Particularly in highly dense sensor networks, overhearing or eavesdropping overheads can constitute a significant fraction of the total energy consumption. Since overhearing of wireless traffic is unavoidable and sometimes essential, a new distributed energy efficient scheme is proposed in this paper. This new scheme exploits the inevitable overhearing effect as an effective approach in order to collect the required information to perform energy efficient delivery for data aggregation. Based on this approach, the proposed scheme achieves moderate energy consumption and high packet delivery rate notwithstanding the occurrence of high link failure rates. The performance of the proposed scheme is experimentally investigated a testbed of TelosB motes in addition to ns-2 simulations to validate the performed experiments on large-scale network.

Published in:

Performance Computing and Communications Conference (IPCCC), 2010 IEEE 29th International

Date of Conference:

9-11 Dec. 2010